1996/04/12 by V. Gogohia, Gogohia, V., B. Lukács +4
Physics and Astronomy · #Ansatz #Constant (computer programming) #Cosmology and Gravitation Theories #Entropy (arrow of time) #FOS: Physical sciences #Hadron #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Lattice (music) #Phase transition #Physics #Quantum mechanics #Statistical Mechanics and Entropy #Thermodynamic potential #Thermodynamics #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9604308
published in arXiv (Cornell University) (Cornell University) · 22 pages, RevTex macros, five figures ; replaced because of additions
openalex publication_date 1996/04/12 · arxiv created 1997/05/17 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
By proposing an Ansatz for the pressure (measured in terms of the bag constant) of the hadronic gas in equilibrium, we have formulated a rather simple method which allows one to analytically investigate the bulk thermodynamic propertities in the vicinity of the phase transition. This makes it also possible to take into account the nonperturbative vacuum effects from both sides of the equilibrium condition. As an example of our approach, we have calculated the crossover (critical or transition) temperature Tc and the critical chemical potential μc (as functions of the bag constant) from the noninteracting quark-gluon plasma state equation. Our results for Tc(Nf=0)=241.5 MeV and Tc(Nf=2)=160.6 MeV are in good agreement with recent lattice data. The extensive densities such as the entropy density, specific heat, etc. are calculated as well. A general scheme how to calculate the latent heat, the critical density, etc. within the extended bad model is also described and it is applied to the two models of the hadronic gas phase.